Custom made intake manifold???

[IsaacHayes]

UIM would be much easier to make from scratch, you'd just need it to interface to the 6 ports, instead of interface to the heads, coolant ports, make up the other half of the valve covers, and valley cover.... I believe the volume and length info is out there... somewhere.. I know it's been mentioned before.

Custom UIM you can extend the runners of the LIM (much like the 3400/3100 intakes do) or just go to huge plenum like the 3500. Brad's UIM was a combination of both IIRC. It looked sort of like the LS1 intake on top of the runners on the LIM. So it would have VERY long runners and a good plenum space inside...........

[bszopi]

[robertisaar]

intruigeing...

[IsaacHayes]

Yup that's how I remember it... I think you should complete it Brad. No one would be able to figure out what motor it was... But you need a TIG welder for those welds!! Those are some looong runners. Almost double length.

[2.8-350TBI]

OMG! Thats beautiful work brad! Looks like someone needs a TIG welder! Now that makes for a neat low-pro engine bay, and has full functionality.

Looks like brad is going to have a copycat in the (not so distant) future...
My goal is to finish the engine buildup (the most labor intensive) in 2010.

Now... Since I will be using genIII 3400 heads, which LIM is a good choice for me?

I sincerely appreciate the help (and corrections) you guys are giving me, well seasoned 60v6'ers are the norm here. Keep it up!

[Superdave]

GM did the work for you, the 3500 UIM..


the 3400 LIM will have to be used with the 3400 heads.